The fonds illustrates Dr. McNaughton’s work as a neurosurgeon and consists of correspondence, letters, articles, newspaper clippings, obituaries, photographs, slides, research material and notes, course material, annual reports and drafts of his work. The fonds is divided into three (3) series.

Fonds consists of letters and accompanying reports from John J. Robson, Superintendent of the Royal Victoria Hospital, concerning staffing in the hospital and changes to bylaws. Also included is a letter from Dr. R. P. Boucher of Peterborough, ON, to Buller introducing Boucher’s friend Dr. Halliday.

Fonds documents Dr. F.C. MacIntosh's teaching and research activities at McGill. The fonds contains correspondence, newspaper clippings, reprints of publications, photographs, documents related to the International Union for Physiological Sciences, lectures, and student reports. The fonds also contains a dossier on Professor George Ralph Mines (1886-1914) assembled by Dr. MacIntosh from 1982-1986. The dossier includes publications, photographs, obituaries, and autopsy information of G.R. Mines, as well as correspondence regarding his death and a copy of "The short brilliant career and strange death of G.R. Mines," written by MacIntosh in 1985.

Fonds documents Frederick Augusutus Rees' activities as a physician in Bermuda. The fonds contains a ledger, an index to the ledger, notes and letters.

Fonds consists of pamphlet entitled, “What to Eat to be Healthy” (Toronto: Canadian Medical Association and Canadian Life Insurance Officers Association, 1937), authored by Tisdall. Fonds also includes: typed letter signed from J. P. Crozer Griffith to Tisdall, Feb. 10, 1923, concerning a case on which Tisdall had consulted Griffith; autographed letter signed from Mrs. J. B. Gregory and Eliza J. Gregory, Aug. 2, 1920, agreeing to lease rental property to Tisdall; and autographed receipt signed from Mrs. J. B. Gregory acknowledging receipt of Tisdall’s rental payments.

Fonds documents the friendship between Tooke and William Boyman Howell through the letters from William Boyman Howell, retired in England, to Frederick Thomas Tooke in Montreal, during the Second World War, from 1941 to 1947.

Fonds documents Dr. Frederick W. Wiglesworth's professional activities.

Fonds shows F.W. Harvey's medical activities and his interest in physical training. The fonds contains 2 day books, an obstetric record, a ledger and a scrapbook.